2019
Том 71
№ 11

All Issues

Budnik V. G.

Articles: 1
Article (Ukrainian)

Coapproximation of functions convex on a disk by algebraic polynomials

Budnik V. G.

↓ Abstract   |   Full text (.pdf)

Ukr. Mat. Zh. - 1994. - 46, № 9. - pp. 1115–1122

An estimate is obtained for the approximation of convex functions of two variables with bounded second derivatives on a disk by convex algebraic polynomials.